TWI675988B - Vehicle lighting device with an optical element pressed against a light source support - Google Patents

Abstract

The invention relates to a lighting device for a motor vehicle, comprising: a housing and an outer lens; a light source support (17) in the housing; an optical element (1); a bearing member (100) fixed to the housing, and the optical The element (1) is sandwiched between the light source support (17) and the carrying member (100); and at least one elastic means (101) is sandwiched between the carrying member (100) and optical means (1) And suitable for being elastically deformable in a direction from the bearing member toward the optical element.

Description

Vehicle lighting device with optical element against light source support

The present invention relates to a lighting device especially for a motor vehicle. The invention relates more specifically to a device for lighting a road, in particular a fog lamp.

In a vehicle lighting device, it is important that the light beam conforms to certain spatial characteristics of the luminous intensity distribution. For example, some lamps must be able to produce a light beam defined by a cut-off line at a certain height above the road.

This section requires the accurate positioning of the light source of these lighting devices relative to the optical element, whose optical element will deflect its light in order to form the required light beam.

For example, in different known luminaires, the light source is fixed to the housing by a stand, and the optical element is also fixed to the housing. Especially in the case of a fog lamp, the light bulb is fixed to the rear surface of the housing via a light bulb support, and the reflector is fixed to the housing via a bracket.

Such a lamp thus includes a plurality of elements in contact between the light source and the optical element with which it is mated. When designing this lamp, these different contacts indicate that there are many tolerances to consider. The more such objects, the more difficult it is to make these lamps.

Therefore, the technical problem to be solved by the present invention is to simplify the production of the vehicle lighting device regarding the tolerance between the light source and the optical element that deflects its light.

For this purpose, the present invention first relates to a lighting device for a motor vehicle, including: a housing and an outer lens, the outer lens closing the opening before the housing and being transparent to allow light emitted by the lighting device to pass therethrough; Holder, in the housing, a light source is fixed or intended to be fixed thereto; an optical element is adapted to deflect light emitted by the light source; a bearing member is fixed to the housing, and the optical element is at least partially Sandwiched between the light source support and the carrying member to achieve fixation with respect to the light source; and at least one elastic means sandwiched between the carrying member and optical means, and suitable for being able to move from the carrying member toward the optical The element is elastically deformed in the direction.

Because the optical element is connected to the holder of the light source without passing through the housing, the number of elements between the light source and the optical element is reduced. The light source and optical components also form part of the same series size. Therefore, greater flexibility and / or accuracy are obtained in the production of this lighting device.

In addition, the elasticity is used to remove the disadvantages in terms of tolerances of the combination of the light source, the light source support, and the bearing member, especially regarding the tolerances of the housing.

According to a specific example of the present invention, the optical element is in direct contact with the support of the light source. Therefore, the serial size is reduced. Its optical element is particularly directly against the light source support.

According to an embodiment of the invention, the elastic means includes a direct connection to the load bearing member on one side and / or a direct connection to the optical means on the other side. The direct connection of the optical element can press the optical element onto the support of the light source more accurately. The direct connection to the load bearing member also enhances this pressing effect.

Therefore, a very accurate specific example of the present invention can be obtained, which has a straightforward Connected to continuous light source support, optical elements, elastic means and bearing members. The carrying member holds the optical element against the light source support.

According to a specific example of the present invention, the bearing member and the light source support where applicable may be directly fixed to the housing. Therefore, the housing can press the different components together.

The present invention may optionally have one or more of the following features: the elastic means is integrally formed with the bearing member; this improves the accuracy; the elastic means leans against the optical element; the optical element includes a light source for making the light emitted by the light source The deflected portion and the movable hinge portion between the first fixed hinge portion and the second fixed hinge portion. The elastic means includes the first fixed hinge portion, and the light source support includes the second fixed hinge portion. The optical element is thus hinged and Can be moved between the light source support and the bearing member; thus the height of the light beam can be adjusted; while allowing the pivoting and articulation of the optical element, the elastic means can keep the optical element against the support of the light source, which is included on one side In the case of direct contact between the elastic means and the support of the light source on the other side; the bearing member includes an armature fixed to the housing and carrying the elastic means, and the elastic means includes two lugs, Each lug is connected to the first fixed hinge portion to the bracket, and the first fixed hinge portion is kept at a distance from the bracket, and the lugs are from each other from the first The fixed hinge portion is bifurcated to the bracket, so that the lugs are deformed by the movement of the first fixed hinge portion toward the bracket to provide the elasticity of the elastic means; the elastic means has a brace shape, and its branches are constituted as convex Ear, the first fixed hinge portion is at the top of its bracket shape; the edge of the bracket facing the portion where the elastic means of the first fixed hinge portion is formed includes a connection formed by a raised portion extending in the direction of this portion boundary (abutment); the deformation of the elastic element is thus limited, making the lugs more durable; the bracket includes an elastic sleeve fixing means nested in the housing and adapted to hold the bearing member against the optical element by elastic means, especially , The telescoping bulge; the optical element can thus be fixed to the light source support only by pressing on it; the elastic telescoping fixing means, the first fixed hinge part, and the joint where applicable, are tied in the housing to The direction of the telescoping of the bearing members is aligned; this can improve the compression effect; the elastic telescoping fixing means includes a bulge that extends laterally with respect to the direction of the telescoping of the bearing members in the housing and is placed on the connection In order to mold the load bearing member, this configuration can generate a common slide in the mold, so as to form the gap between the lugs and the bracket on the one hand, and This raised portion is formed; the movable hinge portion includes two arms on respective opposite sides of the deflecting portion of the optical element, and these arms are free to rotate in the fixed hinge portions so that Rotate through the rotation axis of the two arms as the center to orient the optical element; this pivotal hinge is easy to produce; when the lighting device is installed in a vehicle, its rotation axis may be intended to be parallel, for example, thereby adjusting the beam Height; the arms are cylindrical or conical portions, and the fixed hinge portions are recesses; according to a specific example of the present invention, the concave surfaces of the recesses are cylindrical or complementary shapes to the arms or Conical parts; these shapes are particularly suitable for clamping optical elements while allowing them to rotate freely; optical elements are lenses; brackets are fixed frames; load-bearing members are masks, and the light beam emitted by the lighting device Direction The cover is placed in front of the light source support; such a cover can hide the cable, the back of the housing, or other purely functional components from the viewer outside the lighting device; the cover's support has a central opening and can be accessed from The decorative cover (embellisher) seen from the outside of the lighting device, and after or before being deflected by the optical element, the light emitted by the light source passes through the central opening; viewed from the front or outside, the aesthetic part of the cover thus surrounds the optical element; In addition, if the cover body further includes two elastic means on the respective opposite sides of this center opening (especially on the outer peripheral side of the cover body), its pressurizing effect is improved; therefore, in particular, the The illuminating device of the present invention with a housing is a simple method to achieve effective pressurization with a cover; the optical element is a lens having an optical portion that deflects light from a light source; the optical portion is housed in the central opening , The elastic means and the movable hinge part of the lens are located between the decorative cover and the light source support; the outer lens is welded by vibration welding To the housing; this type of welding is particularly advantageous because no adhesive is needed; it is also particularly suitable for use in the present invention because the elastic element can absorb vibrations used during welding and thus prevent vibrations from passing through the load bearing member Transmission, and prevent the bearing member from being welded to the optical element, and when the bearing member is moved, there will be greater problems; the light source is a light emitting diode; the present invention is used in the case of a lighting device using a light emitting diode Particularly useful; in fact, because the diode has a very small size compared to the filament of a traditional light bulb, it will have a greater impact on the gap and error; the support of the light source is a heat sink, especially a heat sink, The light-emitting diode is intended to be in thermal contact with the heat-dissipating device; the housing includes a cylindrical portion, and the light source support, the lens, and the bearing member are sequentially stacked in a direction parallel to the axis of the cylindrical portion inside the cylindrical portion; So so Simplify the assembly of this lighting device, and when the lighting device is a fog lamp specially installed in the front panel of the vehicle, there is a greater benefit; the bearing member brings its surroundings into contact with the edge of the housing; therefore, many parts are obtained Devices that fit together as closely as possible; this feature is more advantageous in the case of vibration welding of the outer lens to the housing; in fact, in this case, the ability to use elastic means is further utilized because its vibration is easier to remove from The housing is transmitted to the optical element via a carrying member; the optical element is configured to reflect light so as to form an illumination beam with a cut-off line; the accuracy of the device of the invention is more advantageous in this case because , Its cut-off line must be accurately positioned so that the vehicle approaching in the opposite direction or driving in front of the vehicle equipped with the lighting device of the invention will not be dazzled; this lighting device is a fog lamp.

The present invention also relates to a vehicle including the lighting device of the present invention.

Other features and advantages of the present invention will be understood when studying the following detailed description of non-limiting examples and referring to the attached drawings.

1‧‧‧optical element / means; lens

3‧‧‧ (rotation) axis; (light source) (emission) axis

4‧‧‧ optical components; (optical element) (light) deflection

5‧‧‧ (movable) hinge part; pivot hinge part

6‧‧‧ light source

7‧‧‧ (hinge section) arm

8‧‧‧ (lens) front area

9‧‧‧ shaft head

11‧‧‧ fork

12‧‧‧ adjusting screw

13‧‧‧ Lateral side

14‧‧‧ rib

15‧‧‧Thread

17‧‧‧ (light source) support; heat sink

18‧‧‧ (support) arm; (pivot hinge) arm

20‧‧‧ recess; (second) fixed hinge

21‧‧‧ (Control) (electronic) card

22‧‧‧ (Exclusive) (electronic) card

50‧‧‧ shell

51‧‧‧hole

52‧‧‧ enclosed space

53‧‧‧ fixed lug

54‧‧‧outer lens

57‧‧‧Ventilation device

58‧‧‧Ring gasket

59‧‧‧ inside

70‧‧‧ (guide) rib

72‧‧‧ rib

92‧‧‧hole

100‧‧‧Styling parts; cover body; load bearing member

101‧‧‧ Elastic means / component

102‧‧‧ lug

103‧‧‧ lugs

104‧‧‧ recess; (first) fixed hinge

105‧‧‧ Clearance

110‧‧‧ Junction

112‧‧‧Bulge; teeth; elastic telescopic fixing

114‧‧‧ center opening

115‧‧‧ recess

116‧‧‧ bracket; decorative cover

X‧‧‧ (beam emission) direction

FIG. 1 is an exploded perspective view of a lighting device according to the present invention.

FIG. 2 is a front view of the lighting device of FIG. 1 when assembled.

FIG. 3 is a perspective view of the lighting device of FIG. 2 taken on a plane perpendicular to the plane of FIG. 2 and passing through the axis 3.

FIG. 4 is a perspective view of a bearing member of the lighting device shown in the previous figure.

FIG. 5 is a perspective view of the lighting device of FIG. 2 without an external lens or a bearing member.

Fig. 6 is a side view of the lighting device of Fig. 2 without a housing or an external lens.

As shown in FIGS. 1 to 3, the lighting device includes a housing 50 defining a closed space 52, and a light source 6 and an optical element 1 for deflecting light are arranged in the closed space 52. In a conventional manner, the vehicle light further includes an outer lens 54 and a molding member or cover 100, and the molding member or cover 100 is located on the outer lens 54 and the optical element 1 in the direction X of the light beam emitted by the lighting device between.

The housing 50 takes the form of, for example, a substantially cylindrical housing. The housing may include fixing lugs 53 intended to be fixed to the vehicle.

This illuminating device can emit a light beam that is intercepted or at least below a certain level height corresponding to a cut-off line with a very rapid decrease in emission brightness. For example, its light beam is confined below a plane, in particular, it is intended to be substantially horizontal and at a certain height above the road.

In the example shown, this device is a vehicle light that generates a beam of fog lights, and therefore has a horizontal cut-off line; this light is called a fog light.

This device is configured to allow the position of the cut-off line of the light beam to be adjusted in a given direction (in particular, vertical).

In the example shown, the optical element is a lens 1 including an optical component 4 defined by a rear refractive surface and a front refractive surface. It is noted that in this application, it should be understood that the terms "front" and "rear" refer to the direction of the light beam emitted by the lighting device. The front and rear refracting surfaces are configured to generate a cutoff line. According to a specific example not shown, it may have a refractive surface that carries a stripe configured to deflect light to form a cutoff line.

By changing the angular position of the lens 1 with the rotation axis 3 as the center, and adjusting the position of the cutoff line, the rotation axis 3 is intended to face the vehicle equipped with the lighting device Transverse axis of the vehicle. In this example, in order to allow this adjustment, the lens 1 also includes a movable hinge portion 5 that includes an arm 7 that can rotate around the rotation axis 3 as a center.

A solution is created by driving a single member (ie, the lens 1 to transmit the light beam) to adjust the cutoff line.

The optical component 4 and the living hinge part 5 are advantageously made of the same material. The pivotal hinge 5 and the optical component 4 are advantageously integrally formed.

According to this example, the light source 6 may be a light emitting diode (LED) placed on the upstream side of the lens 1 in the direction of the light beam emitted by the lighting device.

The support 17 of the light source 6 is directly fixed to the housing 50 of the lighting device. It thus positions and secures the light source in the housing 50.

Here, especially according to the document EP1762776 (especially, a specific example corresponding to FIG. 11 and subsequent drawings) and / or EP1970619 (especially, a specific example of FIG. 1), it can be known that the lens 1 (especially The front and back refracting surfaces) and the light source 6 are mutually arranged to generate a cutoff line thereof.

The axis of rotation 3 advantageously passes substantially through the light source 6. The lens 1 may further have a focal point at a level height of the light source 6. In this way, a light beam having a characteristic that does not change as a function of the angular position of the lens 1 and is therefore independent of the cut-off line position is generated.

For example, the optical component 4 extends from the arm 7 of the hinge portion 5 and deviates from the rotation axis 3 in the radial direction. In other words, the lens 1 has a side surface extending from the front region 8 of the lens 1 in the direction of the rotation axis 3, and the front region 8 is the portion of the lens 1 furthest from the rotation axis 3. The optical component 4 of the lens 1 is particularly located on either side of the front region 8.

The arms 7 are located in the direction of the axis of rotation 3 of the optical component 4 On opposite sides. For example, they include a shaft head 9 that pivots the articulated lens 1 around the rotation axis 3. These shaft heads 9 have a cylindrical shape and are oriented along the rotation axis 3. This lighting device is configured to allow the shaft heads 9 themselves to rotate about the rotation axis 3 as a center and thus to allow the lens 1 as a whole to rotate around the same axis.

Here, the movable hinge portion 5 further includes a means for driving the rotation of the lens 1. For example, the driving means comprises at least one fork 11 with ribs, and the ribs are intended to cooperate with an adjusting screw 12 transversely (in particular, orthogonally) with respect to the rotation axis 3 and / or the ribs.

Here, the forks 11 are components of the shaft heads 9. They include lateral sides 13 that are radial with respect to the axis of rotation. The lateral sides 13 of the forks 11 include ribs 14 facing each other from one of the lateral sides 13 to the other. These ribs 14 thus define a counterpart to the thread 15 at the level of the adjustment screw 12.

The driving means may be located on either side of the optical component 4 of the lens 1 along the rotation axis 3. When assembling the device, this has the option of placing the adjustment screw 12 on the right or left.

Here, the light source support 17 includes support arms 18, and in this example, there are two support arms 18 on respective opposite sides of the overall emission axis of the LED. The support arms 18 are intended to cooperate with the movable hinge portion 5 (especially, many shaft heads 9) of the lens 1 so as to give the lens 1 rotation around the rotation axis 3 as the adjustment screw 12 acts Degrees of freedom. The support arms 18 are part of the support 17 of the light source 6 and extend in a direction perpendicular to the rotation axis 3. The support arms 18 of the pedestal have fixed hinges 20 at their distal ends, which are adapted to receive the shaft heads 9 and allow them to rotate freely about the axis of rotation 3. In this example, this is a recess 20. The surface of the recess 20 is a part of a cylinder that is complementary to the shape of the shaft heads 9.

FIG. 5 shows this lighting device without a cover to show that the lens 1 is received in the concave surface 20 of the support 17 of the light source 6 together with its shaft head 9.

The cover 100 constitutes a bearing member. As shown in FIG. 1, a load bearing member is stacked in a housing 50 of a lighting device and fixed thereto. Stacked in this way, the bearing member will press the shaft heads 9 into the recesses 20 of the support 17. Figure 6 shows the lighting device without the housing so that the pressurizing effect can be seen.

The cover 100 (shown in detail in FIG. 4) includes two elastic means 101 and a bracket 116. The bracket 116 is configured as a decorative cover of a cover body. These elastic means 101 are located on the respective opposite sides of the cover 100 and extend toward the shaft heads 9 to the shaft heads 9.

Each elastic means 101 has a bracket shape, and its branches are configured into two lugs 102 and 103, and the top of the brackets constitutes a recess 104. The lugs 102 and 103 are connected to the recess 104 at one end thereof and to the decorative cover 116 at the other end thereof. Except for connecting the lugs to the ends of the decorative cover, the lugs 102 and 103 are at a distance from the decorative cover 116. Therefore, there is a gap 105 between a portion of the lugs and the recessed portion 104 carried by the lugs. The recess 104 can therefore be moved toward the decorative cover due to the deformation of the lugs, giving the elastic means 101 elasticity. Its bracket shape simplifies the production of these deformable means.

The recesses 104 of the cover 100 have a cylindrical portion that is complementary to the shapes of the shaft heads. They thus constitute fixed hinges that press against the shaft heads 9.

Therefore, the cover body presses the shaft heads 9 and thus the lenses 1 against the support 17 of the light source through the elastic element 101. The lens 1 is thus fixed directly to the holder of the light source 17.

The mobility of the lens 1 is thus provided by two pivotal hinges, each pivotal hinge is formed by the recesses 104 and 20 together with the shaft heads 9, the recesses 104 and 20 are respectively formed The first fixed hinge portion 104 and the second fixed hinge portion 20 (that is, the corresponding elastic element 101 and the corresponding arm 18 component of the light source's support 17), the shaft heads 9 constitute relative to the fixed Hinge section 5 of the hinge section 5.

In this gap 105, the edge of the bracket constituting the decorative cover includes a joint 110 formed by a raised portion extending in the direction of the recessed portion 104 and formed at a central portion of the elastic element 101. In this way, the central portion of the elastic means 101, and thus the corresponding fixed hinge portion 104, can travel in the direction of the edges of the bracket 116.

This bracket is adapted to be nested in the housing 50 in order to fix it directly therein. The plurality of raised portions 112 around the bracket 116 extend laterally with respect to the direction in which the cover body is nested in the casing 50. There are two ridges 112 in this example. Each ridge is a tooth 112 received in the hole 51 of the casing 50. These teeth 112 thus constitute an elastic telescopic means for fixing the cover body into the casing 50.

When the cover 100 is molded, two counter-forms taken out from the mold in a direction substantially corresponding to the direction X of future light beam emission may be used to form the decorative cover 116. These relative models include recesses or imprints of the various parts of the cover to create the face of the cover 116, the center opening 114 of the cover (where applicable), and elastic means. In order to produce the recesses 115 and thus a complete elastic means, two slides must be used, which are taken out from the mold in a different direction, especially perpendicular to the direction in which the opposing models are away from each other.

According to a specific example of the present invention, the teeth 112 extend laterally with respect to the direction in which the supporting member 100 is nested in the casing 50 and are placed at the level of the junction 110. In this way, it is ensured that the cover body 100 is nested as close as possible to the arms 7 of the lens. In addition, in the molding case described in the previous paragraph, when the recesses 115 are generated, the same slider can be used to mold the teeth 112. The slider includes pins for each gap 105 and imprints for the corresponding teeth 112.

Here, the light source support 17 further includes a control electronic card 21. The card 21 is used to control the light source 6 in particular. The arms 18 of the light source support 17 are located on the respective opposite sides of the control card 21 along the rotation axis 3.

The control card 21 is advantageously offset relative to the light source 6 in the radial direction along the axis of rotation (that is, here refers to the overall emission axis 3 of the light source in the longitudinal direction). In other words, the light source 6 is raised relative to the control card 21. This helps the axis of rotation 3 pass through the light source 6.

In order to be more precise, the light source 6 is located at the level of the exclusive electronic card 22 of the device, and the exclusive electronic card 22 is raised relative to the control card 21 in the direction of the rotation axis 3 . For example, the exclusive card 22 is composed of a substrate such as an SMI board, and the control card 21 is composed of a substrate such as an FR4 board. The dedicated electronic card 22 is carried by the control electronic card 21.

In this example, the light source support 17 is a heat sink. More specifically, the heat-dissipating device 17 is in a heat-exchanging relationship with the LED, especially via the dedicated electronic card 22.

The housing 50 has an inner surface 59. The inner surface 59 is provided with a plurality of ribs 70 for guiding the pivotal hinged arm 18 of the light source support 17. The guide ribs 70 are The pivoting hinge arm 18 of the light source support 17 facilitates the light source support 17 to be fixed in the housing 50.

The inner surface 59 of the casing 50 may further include clipping ribs 72 (ie, elastic nesting ribs) so as to fix the light source support 17 by means complementary to these ribs. As seen in FIG. 5, the latter means may include the edge of the arm 18 of the light source support 17.

As shown in FIG. 1, the lighting device of the present invention can be installed in the casing 50 from the front. Thus, the housing 50 is closed on its end opposite the outer lens 54 by a rear wall that cannot be seen in this drawing. The guiding ribs 70 and / or the clamping ribs 72 are thus open to the front.

Therefore, the lighting device of the present invention can be assembled by stacking the light source holder 17, the lens 1, and the cover 100 in the casing 50 and toward the back of the casing 50. By overlaying the light source support 17 and the cover 100 on the inner wall of the casing 50, these components are simply fixed.

When the lens 1 is clamped by the support 17 of the light source 6 and the cover 100 (both are fixed to the housing 50), a small tolerance gap between the light source and the lens must be considered.

The outer lens 54 then closes the case 50 and is sealed to the case 50 by, for example, vibration welding. In this case, when vibration welding is performed, the elastic means 101 by their configuration will absorb vibrations that are easily transmitted from the cover 100 to the lens 1; this prevents the shaft heads 9 from being welded to the elastic means 101. Of the recesses 104.

The cover 100 includes a central opening 114. Once the fog lamp has been assembled, the cover surrounds the lens 1 and its portion for deflecting light is received in the central opening. Viewed from the outside and from the front, in fact, only the optical part of the lens 1 can be seen Pieces and the front face of the decorative cover 116 of the cover body 100.

In order to facilitate the heat dissipation and compactness of the vehicle light, the rear wall of the housing 50 may include an opening through which the heat sink of the heat sink 17 can pass. In this case, the vehicle light includes a ring-shaped gasket 58 to provide a seal between the heat sink 17 and the housing 50. It may also include a ventilating device 57 which enables the outer casing 50 to communicate with the outside.

According to a specific example not shown, the emitting device may be mounted from the rear, and the light source holder may seal the housing at its longitudinal end with respect to the outer lens.

According to a possible specific example, the light source support 17 may have a hole 92 passing through it. The holes 92 passing therethrough are configured to allow the forks 11 of the hinge portion to pass, and are sufficiently wide to allow relative movement of the forks 11. This facilitates the longitudinal installation of the lens 1 on the housing and through the holder 17.

A hole 92 through the light source support 17 may be created between the pivotally articulated arms 18 of the light source support 17.

The invention is particularly advantageous in the case of fog lamps. However, it can also be applied to other lighting devices.

For example, it can be applied to an illuminating device having a lens that rotates around a vertical axis as a center to generate a moving part of a light beam, in particular, a first light beam having an inclined or vertical cutoff line, the first light beam is intended to have a horizontal cutoff The beams of lines are combined.

According to a specific example of the present invention, this combination can be applied to the lighting device of the present invention to generate a basic light beam with an inclined or vertical cutoff line, and is intended to be combined with a second basic light beam with a horizontal cutoff line. The inclined cut-off beam is horizontally moved by the activation of the optical element, for example, as a function of a turn performed by a vehicle equipped with the lighting device, or as a function of a vehicle approaching in the opposite direction.

Claims (16)

A lighting device for a motor vehicle includes a housing (50) and an outer lens (54). The outer lens is closed before the housing and is transparent to allow light emitted by the lighting device to pass therethrough. A light source support (17) ), In the housing, a light source (6) is fixed or intended to be fixed thereto; an optical element (1) is adapted to deflect light emitted by the light source; a bearing member (100) is fixed to the housing, and The optical element (1) is at least partially sandwiched between the light source support (17) and the carrying member (100) to achieve fixation with respect to the light source (6); and at least one elastic means (101 ), Sandwiched between the carrying member (100) and the optical element (1), and is adapted to be elastically deformable in a direction from the carrying member toward the optical element; wherein the optical element (1) includes a The elastic means is a part (4) that deflects the light emitted by the light source (6) and a movable hinge part (5) between the first fixed hinge part (104) and the second fixed hinge part (20). (101) includes the first fixed hinge portion (104), and the light source support (17) includes the second fixed hinge Portion (20). The lighting device of claim 1, wherein the elastic means (101) includes a direct connection to the load bearing member (100) on one side and / or a direct connection to the optical element (1) on the other side. The lighting device of claim 2, wherein the elastic means (101) is integrally formed with the bearing member (100). The lighting device of claim 1, wherein the bearing member (100) includes a bracket (116) fixed to the casing (50) and carrying the elastic means (101), the elastic means (101) comprising two lugs (102 and 103), each lug connects the first fixed hinge portion (104) to the bracket (116), and keeps the first fixed hinge portion (104) at a distance from the rest of the bracket, and The lugs are forked from the first fixed hinge portion (104) to the bracket, so that the lugs are deformed by the movement of the first fixed hinge portion (104) toward the bracket (116), so that Provide the flexibility of this elastic means. The lighting device of claim 4, wherein the elastic means (101) has a bracket shape, and its branches are constituted by the lugs (102 and 103), and the first fixed hinge portion (104) is on top of the bracket shape. . The lighting device of claim 4, wherein the edge of the bracket (116) facing the portion where the elastic means (101) of the first fixed hinge portion (104) is formed includes a portion extending from the direction toward this portion. The junction formed by the bulge (110). The lighting device as claimed in claim 4, wherein the bracket (116) comprises a sleeve (50) nested in the casing (50) and adapted to hold the bearing member (100) against the optical element (1) via the elastic means (101). Means for elastic telescoping (112). The lighting device of claim 7, wherein the elastic sleeve fixing means comprises a bulge (112) which extends laterally with respect to the direction of the sleeve of the load bearing member (100) in the casing (50), and Placed at the level of the junction (110). The lighting device of claim 1, wherein the movable hinge portion (5) includes two arms (7) located on respective opposite sides of the deflection portion (4) of the optical element (1), and these arms (7 ) Is free to rotate in the fixed hinge portions (104 and 20) so that the optical element can be oriented by rotating around a rotation axis (3) passing through the two arms (7) as a center. The lighting device according to any one of claims 1 to 9, wherein the optical element (1) is a lens. The lighting device according to any one of claims 1 to 9, wherein the bearing member is a cover (100), and is placed in front of the support of the light source (6) in the direction of the light beam emitted by the lighting device. . For example, the lighting device of claim 11, wherein the bracket (116) of the cover (100) is a decorative cover with a central opening (114) that can be seen from the outside of the lighting device, and the optical element (1 After or before deflection, the light emitted by the light source (6) passes through the central opening (114). The lighting device according to any one of claims 1 to 9, wherein the optical element is directly against the light source support. The lighting device according to any one of claims 1 to 9, wherein the outer lens (54) is welded to the housing (50) by vibration welding. The lighting device according to any one of claims 1 to 9, wherein the casing (50) includes a cylindrical portion, and the inside of the cylindrical portion is sequentially stacked in a direction parallel to the axis of the cylindrical portion The light source support (17), the lens (1) and the bearing member. The illuminating device according to any one of claims 1 to 9, wherein the illuminating device is a fog lamp, and wherein the optical element (1) is adapted to reflect light to form an illuminating light beam having a horizontal cutoff line.